Only in extreme circumstances would it be construed that way. eg: if the guy lived an *extremely* long distance away, or if the van was being used for other than business use like pulling his boat or RV for the family vacation. (But no one *here* would ever do that, would they?

)
In almost every usual instance it is either a wash or a net benefit to the contractor to have the truck and mechanic in one place for off hour service calls and other similar and legitimate business purposes. Then there are the issues of zoning and complaining neighbors wrt commercial vehicles in resi areas and the security of the truck/tools.